In diploid organisms, sister chromatids are attached to each other by the centromere.

By contrast, gametes of diploid organisms contain only half as many chromosomes.

So, in normal diploid organisms, chromosomes are present in two copies.

The zygote undergoes repeated mitosis and differentiation to become a diploid organism again.

When a male and a female gamete merge (fertilization), a new diploid organism is formed.

Meiosis is used for a special cell reproduction process of diploid organisms.

A chromosome in a diploid organism is hemizygous when only one copy is present.

In diploid organisms the azygoid state is monoploid.

In diploid organisms, somatic cells possess two copies of the genome.

In diploid organisms, genome size is used interchangeably with the term C-value.